mirror of
https://git.osgeo.org/gitea/postgis/postgis
synced 2024-10-24 09:02:37 +00:00
743417d895
geometry). Added notes regarding the use of ST_Polygon when needing to test the spatial relationship between a raster and a geometry. git-svn-id: http://svn.osgeo.org/postgis/trunk@10095 b70326c6-7e19-0410-871a-916f4a2858ee
437 lines
8.5 KiB
PL/PgSQL
437 lines
8.5 KiB
PL/PgSQL
SET client_min_messages TO warning;
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DROP TABLE IF EXISTS raster_intersects_rast;
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DROP TABLE IF EXISTS raster_intersects_geom;
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CREATE TABLE raster_intersects_rast (
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rid integer,
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rast raster
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);
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CREATE TABLE raster_intersects_geom (
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gid integer,
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geom geometry
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);
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CREATE OR REPLACE FUNCTION make_test_raster(rid integer, width integer DEFAULT 2, height integer DEFAULT 2, ul_x double precision DEFAULT 0, ul_y double precision DEFAULT 0, skew_x double precision DEFAULT 0, skew_y double precision DEFAULT 0)
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RETURNS void
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AS $$
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DECLARE
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x int;
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y int;
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rast raster;
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BEGIN
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rast := ST_MakeEmptyRaster(width, height, ul_x, ul_y, 1, 1, skew_x, skew_y, 0);
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rast := ST_AddBand(rast, 1, '8BUI', 1, 0);
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INSERT INTO raster_intersects_rast VALUES (rid, rast);
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RETURN;
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END;
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$$ LANGUAGE 'plpgsql';
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SELECT make_test_raster(0, 2, 2, -1, -1);
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SELECT make_test_raster(1, 2, 2);
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SELECT make_test_raster(2, 3, 3);
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DROP FUNCTION make_test_raster(integer, integer, integer, double precision, double precision, double precision, double precision);
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INSERT INTO raster_intersects_rast VALUES (10, (
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SELECT
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ST_SetValue(rast, 1, 1, 1, 0)
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FROM raster_intersects_rast
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WHERE rid = 1
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));
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INSERT INTO raster_intersects_rast VALUES (11, (
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SELECT
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ST_SetValue(rast, 1, 2, 1, 0)
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FROM raster_intersects_rast
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WHERE rid = 1
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));
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INSERT INTO raster_intersects_rast VALUES (12, (
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SELECT
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ST_SetValue(
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ST_SetValue(
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ST_SetValue(rast, 1, 1, 1, 0),
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1, 2, 1, 0
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),
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1, 1, 2, 0
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)
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FROM raster_intersects_rast
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WHERE rid = 1
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));
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INSERT INTO raster_intersects_rast VALUES (13, (
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SELECT
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ST_SetValue(
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ST_SetValue(
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ST_SetValue(
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ST_SetValue(rast, 1, 1, 1, 0),
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1, 2, 1, 0
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),
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1, 1, 2, 0
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),
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1, 2, 2, 0
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)
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FROM raster_intersects_rast
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WHERE rid = 1
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));
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INSERT INTO raster_intersects_rast VALUES (14, (
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SELECT
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ST_SetUpperLeft(rast, 2, 0)
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FROM raster_intersects_rast
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WHERE rid = 1
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));
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INSERT INTO raster_intersects_rast VALUES (15, (
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SELECT
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ST_SetScale(
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ST_SetUpperLeft(rast, 0.1, 0.1),
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0.4, 0.4
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)
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FROM raster_intersects_rast
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WHERE rid = 1
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));
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INSERT INTO raster_intersects_rast VALUES (16, (
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SELECT
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ST_SetScale(
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ST_SetUpperLeft(rast, -0.1, 0.1),
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0.4, 0.4
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)
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FROM raster_intersects_rast
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WHERE rid = 1
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));
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INSERT INTO raster_intersects_rast VALUES (20, (
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SELECT
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ST_SetUpperLeft(rast, -2, -2)
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FROM raster_intersects_rast
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WHERE rid = 2
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));
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INSERT INTO raster_intersects_rast VALUES (21, (
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SELECT
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ST_SetValue(
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ST_SetValue(
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ST_SetValue(rast, 1, 1, 1, 0),
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1, 2, 2, 0
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),
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1, 3, 3, 0
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)
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FROM raster_intersects_rast
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WHERE rid = 20
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));
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INSERT INTO raster_intersects_rast VALUES (22, (
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SELECT
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ST_SetValue(
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ST_SetValue(
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rast, 1, 3, 2, 0
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),
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1, 2, 3, 0
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)
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FROM raster_intersects_rast
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WHERE rid = 21
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));
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INSERT INTO raster_intersects_rast VALUES (23, (
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SELECT
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ST_SetValue(
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ST_SetValue(
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rast, 1, 3, 1, 0
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),
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1, 1, 3, 0
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)
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FROM raster_intersects_rast
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WHERE rid = 22
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));
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INSERT INTO raster_intersects_rast VALUES (30, (
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SELECT
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ST_SetSkew(rast, -0.5, 0.5)
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FROM raster_intersects_rast
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WHERE rid = 2
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));
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INSERT INTO raster_intersects_rast VALUES (31, (
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SELECT
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ST_SetSkew(rast, -1, 1)
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FROM raster_intersects_rast
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WHERE rid = 2
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));
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INSERT INTO raster_intersects_rast VALUES (32, (
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SELECT
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ST_SetSkew(rast, 1, -1)
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FROM raster_intersects_rast
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WHERE rid = 2
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));
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SELECT
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'1.1',
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r1.rid,
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r2.rid,
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ST_Intersects(r1.rast, NULL, r2.rast, NULL)
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FROM raster_intersects_rast r1
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JOIN raster_intersects_rast r2
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ON r1.rid != r2.rid
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WHERE r1.rid = 0;
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SELECT
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'1.2',
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r1.rid,
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r2.rid,
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ST_Intersects(r1.rast, 1, r2.rast, 1)
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FROM raster_intersects_rast r1
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JOIN raster_intersects_rast r2
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ON r1.rid != r2.rid
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WHERE r1.rid = 0;
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-- point
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INSERT INTO raster_intersects_geom VALUES (
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1, (
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SELECT ST_SetSRID(ST_MakePoint(0, 0), 0)
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)
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), (
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2, (
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SELECT ST_SetSRID(ST_MakePoint(0.1, 0.1), 0)
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)
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), (
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3, (
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SELECT ST_SetSRID(ST_MakePoint(-0.1, -0.1), 0)
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)
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), (
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4, (
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SELECT ST_SetSRID(ST_MakePoint(-1, -1), 0)
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)
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), (
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5, (
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SELECT ST_SetSRID(ST_MakePoint(-1.1, -1), 0)
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)
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), (
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6, (
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SELECT ST_SetSRID(ST_MakePoint(-1, -1.1), 0)
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)
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), (
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7, (
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SELECT ST_SetSRID(ST_MakePoint(-1.5, -1.5), 0)
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)
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), (
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8, (
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SELECT ST_SetSRID(ST_MakePoint(3, 3), 0)
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)
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);
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-- multipoint
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INSERT INTO raster_intersects_geom VALUES (
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11, (
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SELECT ST_Collect(geom) FROM raster_intersects_geom WHERE gid BETWEEN 1 AND 10
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)
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), (
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12, (
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SELECT ST_Collect(geom) FROM raster_intersects_geom WHERE gid BETWEEN 3 AND 10
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)
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), (
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13, (
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SELECT ST_Collect(geom) FROM raster_intersects_geom WHERE gid BETWEEN 4 AND 10
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)
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), (
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14, (
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SELECT ST_Collect(geom) FROM raster_intersects_geom WHERE gid BETWEEN 5 AND 10
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)
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), (
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15, (
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SELECT ST_Collect(geom) FROM raster_intersects_geom WHERE gid BETWEEN 6 AND 10
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)
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);
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-- linestring
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INSERT INTO raster_intersects_geom VALUES (
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21, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(1, 1),
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ST_MakePoint(1, 0)
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]), 0)
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)
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), (
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22, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(-1, -1),
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ST_MakePoint(1, 1),
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ST_MakePoint(1, 0)
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]), 0)
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)
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), (
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23, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(-1, -1),
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ST_MakePoint(-1, 1),
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ST_MakePoint(1, 1),
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ST_MakePoint(1, -1)
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]), 0)
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)
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), (
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24, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(-1.1, 1.1),
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ST_MakePoint(1.1, 1.1),
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ST_MakePoint(1.1, -1.1),
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ST_MakePoint(-1.1, -1.1),
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ST_MakePoint(-1.1, 1.1)
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]), 0)
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)
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), (
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25, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(-2, 1),
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ST_MakePoint(1, 2),
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ST_MakePoint(2, -1),
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ST_MakePoint(-1, -2),
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ST_MakePoint(-2, 1)
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]), 0)
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)
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), (
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26, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(-0.5, 0.5),
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ST_MakePoint(0, 0.5),
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ST_MakePoint(0, 0),
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ST_MakePoint(0, -0.5),
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ST_MakePoint(-0.5, 0.5)
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]), 0)
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)
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), (
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27, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(0.5, 0.5),
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ST_MakePoint(1, 1),
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ST_MakePoint(1, 0),
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ST_MakePoint(0.5, 0.5)
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]), 0)
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)
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), (
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28, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(1, 1),
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ST_MakePoint(0, 2),
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ST_MakePoint(1, 2),
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ST_MakePoint(1, 1)
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]), 0)
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)
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), (
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29, (
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SELECT ST_SetSRID(ST_MakeLine(ARRAY[
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ST_MakePoint(0, 2),
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ST_MakePoint(1, 2),
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ST_MakePoint(1, 4),
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ST_MakePoint(0, 2)
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]), 0)
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)
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);
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-- polygon
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INSERT INTO raster_intersects_geom VALUES (
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31, (
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SELECT ST_MakePolygon(geom) FROM raster_intersects_geom WHERE gid = 24
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)
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), (
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32, (
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SELECT ST_MakePolygon(geom) FROM raster_intersects_geom WHERE gid = 25
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)
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), (
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33, (
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SELECT ST_MakePolygon(geom) FROM raster_intersects_geom WHERE gid = 26
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)
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), (
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34, (
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SELECT ST_MakePolygon(geom) FROM raster_intersects_geom WHERE gid = 27
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)
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), (
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35, (
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SELECT ST_MakePolygon(geom) FROM raster_intersects_geom WHERE gid = 28
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)
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), (
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36, (
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SELECT ST_MakePolygon(geom) FROM raster_intersects_geom WHERE gid = 29
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)
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);
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-- multipolygon
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INSERT INTO raster_intersects_geom VALUES (
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41, (
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SELECT ST_Multi(ST_Union(geom)) FROM raster_intersects_geom WHERE gid BETWEEN 31 and 40
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)
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), (
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42, (
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SELECT ST_Multi(ST_Union(geom)) FROM raster_intersects_geom WHERE gid BETWEEN 32 and 40
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)
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), (
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43, (
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SELECT ST_Multi(ST_Union(geom)) FROM raster_intersects_geom WHERE gid BETWEEN 33 and 40
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)
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), (
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44, (
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SELECT ST_Multi(ST_Union(geom)) FROM raster_intersects_geom WHERE gid BETWEEN 34 and 40
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)
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), (
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45, (
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SELECT ST_Multi(ST_Union(geom)) FROM raster_intersects_geom WHERE gid BETWEEN 35 and 40
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)
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), (
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46, (
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SELECT ST_Multi(ST_Union(geom)) FROM raster_intersects_geom WHERE gid BETWEEN 36 and 40
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)
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);
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SELECT
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'2.1',
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r1.rid,
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g1.gid,
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ST_GeometryType(g1.geom),
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ST_Intersects(r1.rast, g1.geom)
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FROM raster_intersects_rast r1
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CROSS JOIN raster_intersects_geom g1
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WHERE r1.rid = 0;
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SELECT
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'2.2',
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r1.rid,
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g1.gid,
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ST_GeometryType(g1.geom),
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ST_Intersects(g1.geom, r1.rast)
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FROM raster_intersects_rast r1
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CROSS JOIN raster_intersects_geom g1
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WHERE r1.rid = 0;
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SELECT
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'2.3',
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r1.rid,
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g1.gid,
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ST_GeometryType(g1.geom),
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ST_Intersects(r1.rast, g1.geom)
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FROM raster_intersects_rast r1
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CROSS JOIN raster_intersects_geom g1
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WHERE r1.rid = 2;
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SELECT
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'2.4',
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r1.rid,
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g1.gid,
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ST_GeometryType(g1.geom),
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ST_Intersects(g1.geom, r1.rast)
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FROM raster_intersects_rast r1
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CROSS JOIN raster_intersects_geom g1
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WHERE r1.rid = 2;
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SELECT
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'2.5',
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r1.rid,
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g1.gid,
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ST_GeometryType(g1.geom),
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ST_Intersects(r1.rast, g1.geom, 1)
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FROM raster_intersects_rast r1
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CROSS JOIN raster_intersects_geom g1
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WHERE r1.rid = 0;
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SELECT
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'2.6',
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r1.rid,
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g1.gid,
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ST_GeometryType(g1.geom),
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ST_Intersects(r1.rast, g1.geom, 1)
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FROM raster_intersects_rast r1
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CROSS JOIN raster_intersects_geom g1
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WHERE r1.rid = 2;
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DROP TABLE IF EXISTS raster_intersects_rast;
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DROP TABLE IF EXISTS raster_intersects_geom;
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